Britannica_Dynamo_23.jpg (449 × 229 pixels, taille du fichier : 32 kio, type MIME : image/jpeg)

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Description
English: When the completed winding of fig. 22 is developed as in this figure, it is seen to work continuously forwards round the armature in zigzag waves, one of which is marked in heavy lines, and the number of complete tours is equal to the average of the back and front pitches.
Date
Source Encyclopædia Britannica, 1911
Auteur Encyclopædia Britannica, Volume 8, Slice 9., available freely at Project Gutenberg

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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.
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actuel17 février 2011 à 19:43Vignette pour la version du 17 février 2011 à 19:43449 × 229 (32 kio)Keith Edkins=={{int:filedesc}}== {{Information |Description={{en|When the completed winding of fig. 22 is developed as in this figure, it is seen to work continuously forwards round the armature in zigzag waves, one of which is mark

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